Question

please gugs answer to this ​

Answer 1

• Calcium Carbonate (CaCO3)

Molecular mass = Ca×1+C×1+O×3

= 40×1+12×1+16×3

= 40+12+48

= 90 g/mol

• Sodium Chloride (NaCl)

Molecular mass = Na×1+Cl×1

= 23×1+35.5

= 23+35.5

= 58.5 g/mol

• Methane (CH4)

Molecular mass = C×1+H×4

= 12×1+1×4

= 12+4

= 16 g/mol

• Acetic acid (C3H4O2)

Molecular mass = C×3+H×4+O×2

= 12×3+1×4+16×2

= 36+4+32

= 72 g/mol

• Citric acid (C6H8O7)

Molecular mass = C×6+H×8+O×7

= 12×6+1×8+16×7

= 72+6+112

= 140 g/mol

• Calcium Hydroxide [Ca(OH)2]

Molecular mass = Ca×1+2(O)+2(H)

= 40×1+2(16)+2(1)

= 40+32+2

= 72 g/mol

• Sulphuric acid (H2SO4)

Molecular mass = H×2+S×1+O×4

= 1×2+32×1+16×4

= 2+32+64

= 98 g/mol

• Sodium Bicarbonate (NaHCO3)

Molecular mass = Na×1+H×1+C×1+O×3

= 23×1+1×1+12×1+16×3

= 23+1+12+48

= 84 g/mol

• Acetone (C3H6O)

Molecular mass = C×3+H×6+O×1

= 12×3+1×1+16×1

= 36+1+16

= 53 g/mol

• Iron oxide (Fe2O3)

Molecular mass = Fe×2+O×3

= 56×2+16×3

= 112+48

= 160 g/mol

I had also find out the molecular mass.

Hope it will also help u!

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